WO2010010040A3 - Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump - Google Patents

Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump Download PDF

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Publication number
WO2010010040A3
WO2010010040A3 PCT/EP2009/059166 EP2009059166W WO2010010040A3 WO 2010010040 A3 WO2010010040 A3 WO 2010010040A3 EP 2009059166 W EP2009059166 W EP 2009059166W WO 2010010040 A3 WO2010010040 A3 WO 2010010040A3
Authority
WO
WIPO (PCT)
Prior art keywords
pump
pressure
pressure circuit
auxiliary pump
circuit
Prior art date
Application number
PCT/EP2009/059166
Other languages
German (de)
French (fr)
Other versions
WO2010010040A2 (en
Inventor
Max Bachmann
Kai Borntraeger
Rene Budach
Bernard Hunold
Original Assignee
Zf Friedrichshafen Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Priority to EP09780721A priority Critical patent/EP2300738A2/en
Priority to US13/055,290 priority patent/US20110120568A1/en
Priority to JP2011519130A priority patent/JP2011528780A/en
Priority to CN2009801244458A priority patent/CN102077000A/en
Publication of WO2010010040A2 publication Critical patent/WO2010010040A2/en
Publication of WO2010010040A3 publication Critical patent/WO2010010040A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefore
    • F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2312/00—Driving activities
    • F16H2312/14—Going to, or coming from standby operation, e.g. for engine start-stop operation at traffic lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0446—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control the supply forming part of the transmission control unit, e.g. for automatic transmissions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0396—Involving pressure control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump

Abstract

The invention relates to a hydraulic system (1) of a transmission unit (2) comprising a main transmission pump which can be driven by a torque applied via the transmission unit and an auxiliary pump (7) which can be driven by an electrical machine (6), the two pumps supplying a primary pressure circuit (3) and a secondary pressure circuit (8) with hydraulic fluid depending on the operational state. A pressure side of the main transmission pump and a pressure side of the auxiliary pump (7) are connected to the primary pressure circuit (3) upstream of a pressure relief valve (9) which adjusts a main pressure (pHD) of the primary pressure circuit (3). The pressure relief valve (9) is arranged between the pressure sides of the main transmission pump (4) and the auxiliary pump (7) and the secondary pressure circuit (8). The pressure side of the auxiliary pump (7) can be actively connected to the secondary pressure circuit (8) via a hydraulic line (L1) which can be blocked in the direction of the primary pressure circuit (3) and the secondary pressure circuit (8) and which by-passes the pressure relief valve (8).
PCT/EP2009/059166 2008-07-24 2009-07-16 Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump WO2010010040A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09780721A EP2300738A2 (en) 2008-07-24 2009-07-16 Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump
US13/055,290 US20110120568A1 (en) 2008-07-24 2009-07-16 Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump
JP2011519130A JP2011528780A (en) 2008-07-24 2009-07-16 Transmission system hydraulic system having a transmission main pump and an auxiliary pump
CN2009801244458A CN102077000A (en) 2008-07-24 2009-07-16 Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810040667 DE102008040667A1 (en) 2008-07-24 2008-07-24 Hydraulic system of a transmission device with a transmission main pump and an additional pump
DE102008040667.8 2008-07-24

Publications (2)

Publication Number Publication Date
WO2010010040A2 WO2010010040A2 (en) 2010-01-28
WO2010010040A3 true WO2010010040A3 (en) 2010-03-18

Family

ID=41119735

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059166 WO2010010040A2 (en) 2008-07-24 2009-07-16 Hydraulic system of a transmission unit, comprising a main transmission pump and an auxiliary pump

Country Status (6)

Country Link
US (1) US20110120568A1 (en)
EP (1) EP2300738A2 (en)
JP (1) JP2011528780A (en)
CN (1) CN102077000A (en)
DE (1) DE102008040667A1 (en)
WO (1) WO2010010040A2 (en)

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US8347618B2 (en) 2009-05-13 2013-01-08 Deere & Company Dual pump hydraulic system
DE102010008752A1 (en) * 2010-02-15 2011-08-18 Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 Oiling system for use in hydraulic control valve device for supplying oil to e.g. clutch of hybrid car, has electrical pumping unit for pumping oil from oil tank to car device for lubricating, cooling and/or applying pressure to car device
DE102011005342B4 (en) 2011-03-10 2019-07-04 Zf Friedrichshafen Ag Method for ensuring the oil supply of a transmission comprising a main oil pump and an electrically driven auxiliary pump in the fall
DE102011100797B4 (en) * 2011-05-06 2017-08-17 Audi Ag Clutch transmission, in particular dual-clutch transmission, with a hydraulic circuit
DE102011100796B4 (en) * 2011-05-06 2017-08-17 Audi Ag Clutch transmission, in particular dual-clutch transmission, comprising a hydraulic circuit with a filter associated with a plurality of pumps as a common filter
DE102011079825A1 (en) 2011-07-26 2013-01-31 Zf Friedrichshafen Ag Method of operating hydraulic system of e.g. motor vehicle, involves introducing countermeasure for reducing pressure of hydraulic system, when pressure flow to auxiliary pump is greater than threshold value
US9488285B2 (en) 2011-10-24 2016-11-08 Eaton Corporation Line pressure valve to selectively control distribution of pressurized fluid
US9115731B2 (en) * 2011-10-24 2015-08-25 Eaton Corporation Hydraulic distribution system employing dual pumps
DE102012202905A1 (en) 2012-02-27 2013-08-29 Zf Friedrichshafen Ag Method for operating a motor vehicle and control device thereof
DE102012206041A1 (en) 2012-04-13 2013-10-17 Zf Friedrichshafen Ag Apparatus and method for driving an auxiliary pump of a transmission
DE102012214495B3 (en) * 2012-08-14 2013-12-24 Zf Friedrichshafen Ag Device for ensuring oil supply of secondary circuit of hydraulic system of gearbox of hybrid powertrain of motor car, has bypass valve closed at predetermined pressure to allow predetermined volumetric flow into secondary circuit
KR101865716B1 (en) * 2012-09-03 2018-06-11 현대자동차 주식회사 Oil pressure supply system of automatic transmission
DE102012216304A1 (en) 2012-09-13 2014-03-13 Zf Friedrichshafen Ag Method for operating a drive train of a vehicle
CN103016698B (en) * 2012-12-10 2016-03-02 中国船舶重工集团公司第七〇五研究所 A kind of high-speed overload power transmission lubrication feeding mechanism being applicable to submarine navigation device
WO2014097345A1 (en) * 2012-12-17 2014-06-26 株式会社Tbk Fluid supply device
CN105190108B (en) * 2013-03-21 2017-06-09 丰田自动车株式会社 The hydraulic pressure control device of vehicle
DE102014201131A1 (en) * 2014-01-22 2015-07-23 Zf Friedrichshafen Ag Transmission device with a hydraulic system
DE102014207808A1 (en) * 2014-04-25 2015-10-29 Zf Friedrichshafen Ag Hydraulic system of a transmission with several pressure control valves
DE102014207798A1 (en) * 2014-04-25 2015-10-29 Zf Friedrichshafen Ag Method for operating a hydraulic actuator for a transmission with two hydraulic pumps
JP6354427B2 (en) * 2014-07-30 2018-07-11 日産自動車株式会社 Hydraulic control device for vehicle
JP6277918B2 (en) * 2014-09-16 2018-02-14 トヨタ自動車株式会社 Vehicle hydraulic control device
SE1550307A1 (en) 2014-09-19 2016-03-20 Borgwarner Torqtransfer Systems Ab A hydraulic system
DE102015201107A1 (en) 2015-01-23 2016-07-28 Volkswagen Aktiengesellschaft Method for controlling and / or regulating a hydraulic system of a motor vehicle
CN106494387B (en) * 2015-09-06 2020-03-17 德昌电机(深圳)有限公司 Auxiliary oil pump system of gearbox and starting method
DE102015223460A1 (en) 2015-11-26 2017-06-01 Zf Friedrichshafen Ag Device for demand-oriented oil supply of an element of a drive train of a motor vehicle, in particular a transmission or an internal combustion engine
CN105465352B (en) * 2015-12-31 2018-01-12 盛瑞传动股份有限公司 A kind of automatic transmission automatic start-stop control method of Transmission System
DE102016202625B3 (en) * 2016-02-19 2017-05-04 Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh Pressure oil filter system for a motor vehicle transmission
EP3263953B1 (en) * 2016-06-28 2019-11-06 Thomas Magnete GmbH Hydrostatic drive with closed circuit and method for operating the drive
CN108167239B (en) * 2018-02-27 2019-12-17 安徽江淮汽车集团股份有限公司 Double-pump oil supply system of automatic gearbox and working method thereof
DE102019202138A1 (en) * 2019-02-18 2020-08-20 Zf Friedrichshafen Ag Hydraulic system for a transmission of a motor vehicle drive train
DE102022206502A1 (en) * 2022-06-28 2023-12-28 Zf Friedrichshafen Ag Method for controlling a pump system

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US4984663A (en) * 1989-03-07 1991-01-15 Fuji Tekko Co., Ltd. Transfer apparatus for 4-wheel driving
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US6361287B1 (en) * 2000-09-25 2002-03-26 General Motors Corporation Fluid pumping system for automatic transmission
EP1722121A1 (en) * 2005-05-09 2006-11-15 HOERBIGER Antriebstechnik GmbH Hydraulic double clutch

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Publication number Priority date Publication date Assignee Title
DE910252C (en) * 1952-06-14 1954-04-29 Daimler Benz Ag Hydraulic gear shift system for motor vehicles
US4984663A (en) * 1989-03-07 1991-01-15 Fuji Tekko Co., Ltd. Transfer apparatus for 4-wheel driving
JPH11287316A (en) * 1998-04-03 1999-10-19 Aisin Aw Co Ltd Hydraulic pressure supplying device
EP1103404A1 (en) * 1999-11-25 2001-05-30 Honda Giken Kogyo Kabushiki Kaisha Lubricating structure for a hybrid vehicle
US6361287B1 (en) * 2000-09-25 2002-03-26 General Motors Corporation Fluid pumping system for automatic transmission
EP1722121A1 (en) * 2005-05-09 2006-11-15 HOERBIGER Antriebstechnik GmbH Hydraulic double clutch

Also Published As

Publication number Publication date
DE102008040667A1 (en) 2010-01-28
CN102077000A (en) 2011-05-25
US20110120568A1 (en) 2011-05-26
EP2300738A2 (en) 2011-03-30
JP2011528780A (en) 2011-11-24
WO2010010040A2 (en) 2010-01-28

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